Prince Charles and Camilla, Duchess of Cornwall, stop for a drink in the Richmond Arms Hotel on Nov. 8, 2012, in Hobart, Australia.

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Prince Charles holds a koala called Kao while Camilla, Duchess of Cornwall, holds a koala called Matilda at Government House on Nov. 7, 2012, in Adelaide, Australia. The royal couple are in Australia on the second leg of a Diamond Jubilee Tour ,taking in Papua New Guinea, Australia and New Zealand.

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Camilla, Duchess of Cornwall, and Prince Charles hold koalas at Government House on Nov. 7, 2012, in Adelaide, Australia.

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Prince Charles and Camilla, Duchess of Cornwall, meet indigenous people after a traditional welcome at Government House on Nov. 7, 2012, in Adelaide, Australia.

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Prince Charles and Camilla, Duchess of Cornwall, taste wine at the Penfolds Magill State Winery on Nov. 7, 2012, in Adelaide, Australia.

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Prince Charles has lunch with students after inspecting student gardens during a visit to Kilkenny Primary School on Nov. 7, 2012, in Adelaide, Australia.

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Prince Charles and Camilla, Duchess of Cornwall, plant a tree after inspecting student gardens during a visit to Kilkenny Primary School on Nov. 7, 2012, in Adelaide, Australia.

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Prince Charles, Prince of Wales, talks with school Principal Mike Tate, left, during a visit to Kilkenny Primary School on Nov. 7, 2012, in Adelaide, Australia.

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Camilla, Duchess of Cornwall, and Prince Charles visit the Victorian College of the Arts Secondary School on Nov. 7, 2012, in Melbourne, Australia.

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Prince Charles talks to children during a visit to the Australian Tapestry Workshop on Nov. 6, 2012, in Melbourne, Australia.

Camilla, Duchess of Cornwall, and Prince Charles present the Diamond Jubilee Plate as they attend the Melbourne Cup on Nov. 6, 2012, in Melbourne, Australia.

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Camilla, Duchess of Cornwall holds a joey kangaroo called Ruby Blue as she visits the Cattle Rancher's Hall of Fame on Nov. 5, 2012 in Longreach, Australia. She and her husband, Prince Charles, are in Australia on the second leg of a Diamond Jubilee Tour taking in Papua New Guinea, Australia and New Zealand.

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Looking like Indiana Jones, Britain's Prince Charles, meets members of the public after visiting the Cattle Rancher's Hall of Fame on Nov. 5, 2012, in Longreach, Australia. The royal couple are in Australia on the second leg of a Diamond Jubilee Tour taking in Papua New Guinea, Australia and New Zealand.

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Prince Charles meets members of the public after visiting the Cattle Rancher's Hall of Fame on Nov. 5, 2012, in Longreach, Australia.

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Prince Charles is welcomed by Quentin Bryce, Governor-General of Australia, after his arrival with Camilla, Duchess of Cornwall, at Longreach Airport on Nov. 5, 2012, in Longreach, Australia.

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Camilla, Duchess of Cornwall, and Prince Charles, Prince of Wales, disembark the royal plane on Nov. 5, 2012, in Longreach, Australia.

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Camilla, the Duchess of Cornwall, meets the locals after she and her husband, Britain's Prince Charles, arrived at Longreach in outback Queensland on Nov. 5, 2012.

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Britain's Prince Charles meets the locals after he and his wife arrived at Longreach in outback Queensland on Nov. 5, 2012.

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Camilla, Duchess of Cornwall, meets a joey kangaroo called Ruby Blue as she visits the Cattle Rancher's Hall of Fame on Nov. 5, 2012, in Longreach, Australia.

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Camilla, Duchess of Cornwall, holds a joey kangaroo called Ruby Blue as she visits the Cattle Rancher's Hall of Fame on Nov. 5, 2012, in Longreach, Australia.

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Prince Charles, Prince of Wales, gives a speech during a cultural event at Sir John Guise Stadium on Nov. 4, 2012, in Port Moresby, Papua New Guinea.

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Camilla, Duchess of Cornwall, and Prince Charles are driven around Sir John Guise Stadium after a cultural event on Nov. 4, 2012, in Port Moresby, Papua New Guinea.

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Camilla, Duchess of Cornwall, and Prince Charles, Prince of Wales, are driven around Sir John Guise Stadium after a cultural event on Nov. 4, 2012, in Port Moresby, Papua New Guinea.

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"'Mud Men" in traditional dress prepare to greet Camilla, Duchess of Cornwall, and Prince Charles, Prince of Wales, in Sir John Guise Stadium after a cultural performance on Nov. 4, 2012, in Port Moresby, Papua New Guinea.

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Dancers prepare to greet Camilla, Duchess of Cornwall, and Prince Charles, Prince of Wales, in Sir John Guise Stadium after a cultural performance on Nov. 4, 2012, in Port Moresby, Papua New Guinea.

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Women in traditional dress prepare to greet Camilla, Duchess of Cornwall, and Prince Charles in Sir John Guise Stadium after a cultural performance on Nov. 4, 2012, in Port Moresby, Papua New Guinea.

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A man in traditional Papua dress prepares to greet Camilla, Duchess of Cornwall, and Prince Charles in Sir John Guise Stadium after a cultural performance on Nov. 4, 2012, in Port Moresby, Papua New Guinea.

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Camilla, Duchess of Cornwall, chats with Kokoda Campaign veteran Bob Iskov during a reception for Kokoda Veterans on the 70th Anniversary of the Australian battle against to Japanese at the Airways Hotel on Nov. 4, 2012, in Port Moresby, Papua New Guinea.

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Prince Charles and Camilla, Duchess of Cornwall, arrive at Jackson's International Airport on Nov. 3, 2012, in Port Moresby, Papua New Guinea.

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Prince Charles and Camilla, Duchess of Cornwall, meet Papua New Guinea's Governor General, Sir Michael Ogio, and Lady Ogio as they arrive at the Airways Hotel on Nov. 3, 2012, in Port Moresby, Papua New Guinea.